package test3;
interface swim {
    void swim();
}
interface run {
    void run();
}
interface jump {
    void jump();
}
interface fly {
    void fly();
}

abstract class Animal {
    public String name;
    public int age;
}
class bird extends Animal implements fly, run, jump{
    public void fly() {
        System.out.println("飞起来了");
    }
    public void run() {
        System.out.println("跑步");
    }
    public void jump() {
        System.out.println("跳");
    }

}

public class test1 {

    public static void main(String[] args) {
        Object obj = new bird();
        obj.hashCode();
    }
}
